5 days ago7 min20 Causes of Low Indoor Airflow on Ducted HVAC Units!In this HVAC training article, I discuss 20 AIRFLOW Problems that you may find on ducted gas furnaces, air conditioners, heat pumps, air...
Apr 88 minFinding a Low Voltage Short Quickly, Step by Step!In the world of HVAC, low voltage shorts are a common occurrence on a service call. Low voltage shorts occur when an electrical circuit...
Feb 35 minThe Benefits of Using an Ultrasonic Leak Detector to Find Refrigerant Leaks!A refrigerant leak may be easy to find when the leak is a large one but when the leak is small, finding it can be tedious and time...
Nov 25, 202015 minDuctless Mini-Split Installation Step by StepIn this step by step installation, we will be covering the full installation of a Ductless Mini-Split heat pump system. This system...
Oct 21, 20208 minWhat Components are in a Forced Air Gas Furnace? What do they Do?In order to troubleshoot a gas furnace, the technician must have a thorough knowledge of each component that could be in the unit....
Sep 23, 20205 minTroubleshooting an HVAC Control Board? How?Diagnosing if a control board is bad on a furnace, air conditioner, or heat pump may seem difficult but here are some simple tips and...
Aug 19, 20204 minClogged Liquid Line Filter Drier? How can you tell if you have a clogged liquid line filter drier? If there is a noticeable temperature drop from one side of the filter...
Aug 6, 20201 minIs There an Easy Way to Tell if a Mini-Split Ductless Unit is Low on Refrigerant? (Quick Tip)Is there an easy way to tell if a mini-split ductless unit is low on refrigerant? Yes, if the Delta T is low and the system continues to...
Aug 6, 20201 minWhy Do Some Evap Coils Leak While Others Do Not? (Quick Tip)Why do older coils seem to last a long time but ones that are only 10 or 15 years old leak? Energy transfer efficiency was not as much of...
Jul 22, 202010 min40 Vacuum Tips for HVACR Technicians! Avoid Frustration!I put this list together to make sure that HVACR technicians don’t have to undergo the same frustrations, loss of time, and expenses that...
Jul 16, 20208 minChecking the Charge of Air Conditioners without Measuring Pressure!Can you check the charge on a system without checking pressure? Sure, remember that the only reason we check pressure is to convert it to...
Jun 29, 20201 minCan I measure a Negative Subcooling When Checking the Charge? (Quick Tip)The answer is no because the refrigerant rejects heat in the condenser so the pressure and temperature of the refrigerant should lower....
Jun 24, 20207 minR-22 and R-410A Operating Pressures, Charging and Recovery Setup!In this article, we will discuss an HVAC unit’s refrigerant pressure on both the high side and the low-pressure side while the system...
Jun 11, 20206 minCharging a System in a Dry Climate? Consider a TXV and Accumulator!In a dry climate, certain considerations must be taken prior to installing or servicing air conditioning systems. A TXV metering device...
May 28, 20208 minHow NOT to Check the Refrigerant Charge!There are many ways that technicians have tried to get around actually checking the charge of air conditioners and heat pumps with...
May 20, 20206 min10 Reasons Why a Mini-Split Ductless Flare May Leak Refrigerant!On a mini-split ductless system, two copper tubes are needed to transport the refrigerant. These copper tubes are referred to as the line...
May 6, 202011 minChecking the Charge of a Mini-Split Unit!A question that I get asked frequently is “Can I check the charge of a mini-split ductless unit with superheat and subcooling the same...
May 4, 20202 minIs a Triple Evacuation Necessary for a Deep Vacuum?Do you have to do a triple evacuation if you can achieve a deep vacuum by only doing a single evacuation? Remember that the target vacuum...
May 1, 20201 minMeasuring Negative Superheat on an Air Conditioner? (Quick Tips)Can you Measure Negative Superheat on an air conditioner when checking the charge? The Answer is NO! Time to check your gauges and temp...
May 1, 20202 minHow to Tell if a TXV Has Lost Part of its Bulb Charge! (Quick Tip)How do you tell if a TXV lost part of its bulb charge? If you are measuring a correct/high subcooling along with a high superheat and a...
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